A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wavelet‐based structural modal parameter identification
A new wavelet‐based modal parameter identification method was proposed in this paper. Under the assumption that the ambient excitation loads were white noise, the covariance was calculated from multiple‐sensor structural acceleration measurements. Utilizing the wavelet transform, the time‐domain covariance responses were transformed into time–frequency domain wavelet coefficients. The constructed matrix at each wavelet scale was subsequently decomposed by singular value decomposition, and structural modal parameters could be estimated from the singular values and singular vectors. The proposed method was proved theoretically, and a numerical example was used to validate this method, which showed that this wavelet‐based method was not affected by the measurement noise. Finally the method was applied to ambient vibration records measured on the Donghai Bridge to demonstrate the performance of the proposed technique. Results confirmed its ability in identifying structural modal parameter for large‐scale civil engineering structures. Copyright © 2011 John Wiley & Sons, Ltd.
Wavelet‐based structural modal parameter identification
A new wavelet‐based modal parameter identification method was proposed in this paper. Under the assumption that the ambient excitation loads were white noise, the covariance was calculated from multiple‐sensor structural acceleration measurements. Utilizing the wavelet transform, the time‐domain covariance responses were transformed into time–frequency domain wavelet coefficients. The constructed matrix at each wavelet scale was subsequently decomposed by singular value decomposition, and structural modal parameters could be estimated from the singular values and singular vectors. The proposed method was proved theoretically, and a numerical example was used to validate this method, which showed that this wavelet‐based method was not affected by the measurement noise. Finally the method was applied to ambient vibration records measured on the Donghai Bridge to demonstrate the performance of the proposed technique. Results confirmed its ability in identifying structural modal parameter for large‐scale civil engineering structures. Copyright © 2011 John Wiley & Sons, Ltd.
Wavelet‐based structural modal parameter identification
Min, Z. H. (author) / Sun, L. M. (author)
Structural Control and Health Monitoring ; 20 ; 1-18
2013-02-01
18 pages
Article (Journal)
Electronic Resource
English
Wavelet-Based Modal Parameter Identification through Measurements for Damage Detection
| British Library Online Contents | 2007
Continuous wavelet transform for modal parameter identification of flutter data
| British Library Conference Proceedings | 2023
Structural Modal Parameter Identification Based on Natural Excitation Technique
| British Library Conference Proceedings | 2014
| British Library Conference Proceedings | 2015